Validates that the Fedex Shipping method prices in the checkout page. $smartPostPrice \$([0-9]+(\.[0-9]+)?)$ $groundFedexPrice \$([0-9]+(\.[0-9]+)?)$ $expressSaverFedexPrice \$([0-9]+(\.[0-9]+)?)$ $twoDayFedexPrice \$([0-9]+(\.[0-9]+)?)$ $twoDayAMFedexPrice \$([0-9]+(\.[0-9]+)?)$ $standardOvernightFedexPrice \$([0-9]+(\.[0-9]+)?)$ $priorityOvernightFedexPrice \$([0-9]+(\.[0-9]+)?)$